Storing images and files in iOS devices

I would like to know about storing the images or files of my application to the device. I think we can store these things to Document directory/library. I would like to know , is there any other options we have.

I have seen somewhere like, we can save the images to photo library with UIImageWriteToSavedPhotosAlbum.Could anyone please give me more information regarding this.If it is saved to photo library where is it being saved ?

Finally, yes there is full support for you to write to the Photo Library. You'll want to use the Photos Framework and the images and videos are simply saved into the iOS "Photos" app. You can create a folder to hold your App's images, for instance.